fix: GUI/Dockerfile.test to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-7908292
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-7908293
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-7908294
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-9459845
- https://snyk.io/vuln/SNYK-ALPINE318-LIBXML2-9380739

Author: snyk-bot

GUI/Dockerfile.test

@@ -5,7 +5,7 @@ RUN npm install --legacy-peer-deps --mode=development
 COPY . .
 RUN ./node_modules/.bin/vite build --mode=development
 
-FROM nginx:1.25.4-alpine
+FROM nginx:1.28.0-alpine
 COPY --from=build /app /usr/share/nginx/html
 #COPY ./nginx/nginx.conf /etc/nginx/conf.d/default.conf